Safety device



Dec; 1942. y

w. E. PALMER SAFETY DEVICE Filed April 20, 1942r 2 Sheets-Sheet 1 Waff@57222? MMA Dec. 8, 1942. w. E'. lPALMER SAFETY DEVICE Filed April 20,1942 2 Sheets-Sheet 2 Patented Dec. 8, 1942 UNITED STATES tATlNT OFFICESAFETilr DEVICE Walter E.` Palmer, Cicero, Ill. Application April 20,1942, Serial No. 439,703

i 11 Claims. (c1. 248-203) port or hanger. with the result that seriousdamage may result as there is nothing to indicate that they have beentampered with until use is attempted to be made of them.

of the objects of the present invention to provide an `improved. safetydevice or holder oi this character which Will not only main,- tainanextinguisher in position foriusebut from which holder the extinguishermay be readily and quickly removed, and which will. when theextinguisher is removed, become locked to not only prevent theextinguisher from being replaced thereupon, but will serve as anindicator that the same has been tampered with. When the extinguisher isonce removed, the holder will remain in an inoperative condition untilthe parts thereof are re-positioned with respect to each other bytheemployment of the proper key or unlocking device.

While in the invention the same has been shown and will be with otherarticles. i

A further object is `to provide an improved device of this characterwhich Will be of a simple, cheap, strong and compact construction,readily operable, eifective and eicient in operation, and

this invention, and in Which Fig. 1 is a view partly in elevation,partly in section and With` parts removed, oi a safety device of thischaracter, constructed in accordance to prevent the with the principlesof this invention, and showing the parts in the position supportedthereby.

Fig. 2 is a horizontal sectional View taken on line 2-2, Fig. 1.

Fig. 3is a View similar to Fig. i, showing the position some of thepartswill assume when the holder is locked in position to hold thearticle, and so as to permit the insertion into or placing of thearticle upon the supportor holder.

Fig. 4 is a view similar to Fig. 3, showing the position the parts Willassume When the extinguisher or article has been removed from theholder, and With the parts in a locked position holder from beingreplaced or moved back to a normal operating condition.

Fig. 5 is a View partly in section, partly in elevation, of a detail.

The safety device or holder consists, essentially, of a main supportingmember Hl which is mounted upon a suitable support, here shown as abracket Il,` the latter when employed being secured in any desired orsuitable manner to a Wall or othersupport.

The member I il is pivotally connected to the member or bracketA IIpreferably by meansoi a latter preferably being provided With a roundedportion I2 intermediate its ends, and which portion l2 stands Within anopening i3 in the member I9.

One end I4 of the bolt is preferably irregular in cross-section, asshown more clearly in Fig. 2, and enters a recess I5 in the support orbracket AIl so as to be maintained against rotation with respectthereto, the extremity I 6 being preferably headed so as to preventdisplacement.

The Iother end of the bolt passes through the member I0, and is alsoirregular in cross-section, as at I1, shown more clearly in Fig. 5, andthis angular portion Il is seated Within a recess I8 in a member I9, andthese parts are secured together in any suitable manner, preferably bymeans of a collar 20. The member I9 is provided with a laterally deectedextremity 2| for a purpose to be hereinafter set forth.

With these parts assembled, it will be manifest that as the supportingbolt is Xed against rotation with respect to the support or bracket I I,and as the member i9 is also Xed against rotation with respect to thesupporting bolt, these parts will remain stationary While the member Imay be given -a pivotal movement about the portion I2.

Mounted to slide upon the member I0 is an Vpawl 28 about its Thiselement may bolt 24 and the end I4, which project into the slots 23,thereby mounting the element upon the member I0 for bodily swingingmovement therewith and for longitudinal shifting movement with respectthereto.

The element 22 is provided with a shoulder 25 at one extremity'thereof,which, when the parts are in the position shown in Figs. 1 and 2, isadapted to engage under the laterally projecting end 2| of the memberI9, and thereby maintain the member I8 with the element 22 in a lockedposition, to prevent the member I8 from swinging about its pivot I2.

The forward end of the element 22 is provided with a shoulder 26, whichlatter forms a stop for the end 21 of a bell crank lever or pawl 28, thelatter being pivotally mounted, as at 29, upon the element 22. cranklever, as at 38, is connected one end of a spring 3|, the other end ofthe spring being anchored, as at 32, to the member I0. The normaltendency of the spring 3I is to rock the lever or pivot 29, to cause theend 21 thereof to engage the shoulder 26 on the element 22, and therebyto hold the lever or pawl '28 yieldingly in this position.

The spring 3| also serves the function of tending to move the element 22bodily in a lengthwise direction, to position the shoulder 25 so as toengage under the end 2| of the member I9, as shown more clearly inFig. 1. At the same time,

the movement of the lever or pawl 28 about its A with; that is to pivot29 will not -be interfered say, when the lever or pawl 28 is moved aboutits pivot so that the end 21 will move away from the shoulder 26, theelement 22 will remain in the position shown in Fig. 1, when theremaining parts are in the same relative position.

Carried also by the element 22 is a shoulder 33., and pivotally mounted,as at 34, upon the member I8, is a catch 35 having a shoulder 36. Thiscatch 35 is controlled by a spring 31, and the normal tendency of thespring 31 is to move the catch in a direction that, when the shoulder 33is in a proper position with respect thereto, the shoulder 36 on thecatch will engage over the edge of the shoulder 33 and maintain theelement 22 in a forward lor unlocked position with respect to the end orshoulder 2| and against the stress of the spring 3l.

In order to release the element 22 when it is thus locked, the catch 35must be swung about its pivot so as to move the shoulder 36 thereof outof engagement with the edge of the shoulder 33. This may be accomplishedin any desired or suitable manner, but preferably by means of a cam ormember 38 which is controlled by a keyactuated device 38, the latterbeing accessible from the outside of a casing 48, within which all ofthe above-referred-to parts operate, a keyhole 4I being provided topermit the insertion of a key.

By the operation of the key, the member 38 will be brought intoengagement with a shoulder 42 on the catch 35, to move it against thestress of the spring 31. When the member 38 is moved into an inoperativeposition with respect to the catch, the latter, under the influence ofthe spring 31, will move into a position so as to engage over the edgeof the shoulder 33 on the element 22 when the latter is moved forwardly.

When the parts are in the position shown in To the other end of the bellf Fig. 1, the member I0 will be locked in an operative position; thatis, in a position to receive the article, which, in the presentexemplification of this invention, is shown as a ilre extinguisher 43,having a handle 44. This handle 44 is adapted to engage in a seat 45 atthe forward end 46 of the supporting member I8, and which seat may beformed as a part of the casing 48.

1n order to prevent the removal of the fire extinguisher from the safetydevice or support, and so as to detect the fact that the same has beenremoved, there is provided a locking member 41 which is pivotallysupported preferably upon the bolt 34 which supports the catch 35. Theforward end of this member 41 is adapted to assume a position behind andin the path of movement of the handle 44 of the extinguisher 43, in itsmovement from the seat 45. The other end 48 of the member 41 projectsbehind the end 21 of the lever or pawl 28, so that ,as the handle 44passes out of the seat 45 and engages the end of the member 41, thelatter will be rocked about its pivot 34.

At this time, the end 48 of the member 41, being positioned behind theend 21 of the lever or pawl 28, will engage the said end and will movethe element 22 forwardly against the stress of the spring 3| asufficient distance to permit the catch 35, under the influence of thespring 31, to move in a direction that its shoulder 36 will pass behindthe edge of the shoulder 33 to lock the element 22 in a forwardposition. That is, the element 22, having been thus moved so as to drawthe shoulder 25 out of a position that it would engage the shoulder 2|,the member I8 and all of the parts supported thereby, will be free toswing about the pivot I2.

A stop device 48 may be provided able support such as the member I8, tobe engaged by the member I8, and thereby arrest the swinging movement ofthe member I8 in one direction, that is, in a position where the recessor seat 45 will be in a position to receive the handle 44 and hold theextinguisher 43 in position. As the member 41 swings about its pivot 34to draw the element 22 forwardly, the parts will eventually assume theposition as shown in Fig. 3. That is, the lower end 48 of the member 41will engage the end 21 of the lever or pawl 28 to rock the latter aboutthe pivot 29 against the stress of the spring 3 I. This will cause theend 48 to ride upon the top of the end 21 of the lever or pawl 28, asshown in Fig. 3. With the parts in this position, the entire structurewill swing freely about the pivot I2. Y

To render the device or support active to hold the extinguisher, thesupport or member I0 is first moved from the position shown in Fig. 4back to the position shown in Fig. 3. At this time, the catch 35 may betripped by the keyactuated member 38; or, if desired, the catch 35 maybe tripped before it reaches the position shown in Fig. 3. When thecatch 35 is released and the parts are in position, as shown in Fig. l,

the spring 3| will move the element 22 back to a position where theshoulder 25 willA engage the shoulder 2| on the member I8.

During this operation, and as the lower end 48 of the member 41 willstill be in the position shown in Fig. 3, that is, resting upon the top26 of the end 21 of the lever or pawl 28, and when the handle 44 isplaced in the seat45, in order to lock the extinguisher in positionagainst removal, all that is necessary is to engage the end 'of the onany suitback to the position shown in Fig. l, that is, be-

hind the end 21, the lever or pawl 28 yielding to permit such operation.

With this improved construction, it will be manifest that it will not bepossible, after the extinguisher has once been removed, to replace itwithout being detected, as it will be necessary,

been herein shown and described, it is to be understood that variouschanges may be made in the details of construction and in thecombination and arrangement of the several parts, within the scope ofthe claims, without departinfr from the spirit of this invention.

What is claimed as new is:

1. A safety device of the character described, embodying a shiftablearticle support, means for maintaining the support in a predeterminedposition when an article is held thereby, means controlled by theremoval of the article from the support for rendering' the rst inactive,whereby the support will shift to another position, the first recitedmeans remaining inactive in theabsence of an article upon the support,whereby the latter will be maintained against assuming a position inwhich it will hold an article, and additional meansfor rendering thesecond recited means active at will.

2. A safety device of the characterdescribed,

sltion when an article is held thereby, means controlled by the removalof the article from the support for rendering the first said meansinactive, whereby the support will shift to another position, the firstrecited means remaining inactive in the absence of an article upon thesupport, whereby the latter will be maintained against assuming aposition in which it will hold an article, and additional means forrendering the second recited means active at will, the last recitedmea-ns embodying key controlled mechamsm.

3. A safety device of the character described, embodying a shiftablearticle support, means for maintaining the support in a predeterminedposition when an article is held thereby, means controlled by theremoval of the article from the support for rendering the iirst saidmeans inactive, whereby the support will shift to another position, thefirst recited means remaining inactive in the absence of an article uponthe support, whereby the latter will be maintained against assuming aposition in which it will hold an article, additional means forrendering the second recited means active at will, the last recitedmeans embodying a catch device for locking the iirst said means in aninactive position with respect to the support, and key actuated meansfor rendering the said catch device inactive at will.

4. A safety device of the character described, embodying a shiftablymounted article holder, an element mounted upon said holder for movementtherewith and with respect thereto, a stationary shoulder with whichsaid element 1s adapted to co-operate to lock the holder in said meansposition when an article is held by the latter, means tendingnormally torender said element active with respect to said shoulder, meanscontrolled by the 'removal of an article from the holder for shiftingsaid element with respect to the element inactive with respect to saidshoulder, locking means for maintalning said element in said inactiveposition, and

locking means inactive at will.

5. A safety device of the character described, embodying a shiftablymounted article holder, an element mounted upon said holder for movementtherewith and with respect thereto, a stationary shoulder with whichsaid element is adapted to co-operate to lock the holder inapredetermined position when an article is held by the latter, meanstending normally to render said element active with respect to saidshoulder, meanscontrolled by the removal of an article from the holderfor shifting said element with respect to said holder to render theelement inactive with respect to said shoulder, locking means formaintaining said element in said inactive position, and key controlledmechanism for rendering said locking means inactive at will, the saidmeans which is controlled by the article, embodying an element, aportion of which is engagedand moved by the article as it is beingremoved from said holder.

6. A safety deviceof the character described, embodying a shiftablymounted article lholder, an element mounted upon said `holder formovement therewith and with respect thereto,v a Stationary shoulder withwhich said element is adapted to cooperate to lock the holder in apredetermined position when an article is held by the latter, meanstending normally to render said element active with respect to saidshoulder, means controlled by the removal of an article from the holderfor shifting said element with respect to said holder to render theelement inactive with respect to said shoulder, locking means formaintaining said element in said inactive position, and key controlledmechanism for rendering said locking means inactive at will, the saidmeans which is controlled by the article, embodying a pivotally mountedelement, a portion of which is adapted to be positioned in the path ofmovement of and engaged and moved by the article as it is being removedfrom said holder, the last e. said element being also movable into anoperative a predetermined position independently with respect to saidshiftable element when the latter is locked in an active position withrespect to said shoulder.

'7. A safety device of the character described, embodying a shiftablymounted article holder, an element mounted upon said holder for movementtherewith and with respect thereto, a stationary shoulder with whichsaid element is adapted to co-operate to lock the holder in apredetermined position when an article is held by the latter, meanstending normally to render said element active with respect to saidshoulder, means controlled by the removal of an article from the holderfor shifting said element with respect to said holder to render theelement inactive with respect to said shoulder, locking means formaintaining said element in said inactive position, the said lockingmeans embodying a catch movable into and out of engagement with aportionof the said element, and key controlled means engageable withsaid catch for shifting the latter to unlock said element.

8. A safety device of the character described,

embodying a shiitablymounted article holder, an element mounted uponsaid holder for vmovement therewith and with respect thereto, astationary shoulder,` means tending normally to move said element withrespect to said holder to engage said shoulder to maintain the holder ina predetermined position, a secondelement mounted upon the rst saidelement for movement therewith and with respect thereto, an

article engaging element adapted to engage the 10 said second elementforV shifting the iirst said element into an inactive position withrespect to said shoulder, a portion of the said article engaging elementbeing adapted to be positioned in the path of movement of the articlefrom the 15` holder and to be shifted thereby, locking means for lockingthe rst said element in its said inactive position, and key controlledmeans for rendering the said locking means inactive.

9. A safety device of the character described, 20

embodying a shiftably `mounted article holder, an element mounted uponsaid holder for movement therewith and with respect thereto, astationary shoulder, means tending normally to move said element withrespect to said holder to 25 engage` said shoulder to maintain theholder in a predetermined position, a second element said second elementbeing mounted upon the first said element for movement therewith andwith respect thereto, an article engaging element adapted to engage thesaid second element for shifting the iirst said element into an inactiveposition with respect to said shoulder, a portion of the said articleengaging element being adapted to be positioned in the pathof movementof the article from the holder and to be shifted thereby, locking meansfor locking the first said element in its said inactive position, andkey controlled means for rendering the said locking means inactive, the

said second element being moved with respect to `4,()

therst said element by the said article engaging element, whereby thelatter may be moved back into aposition where it will obstruct theremoval of an article from the holder, while therrst said element ismaintained in its locked and eiective position. A

l0. A safety device of the character described, embodying a shiftablymounted article holder, an element mounted upon said holder for movementtherewith and with respect thereto, a stationary shoulder, means tendingnormally to move said element with respect to said holder to engage saidshoulder to maintain the holder in a predetermined position, a secondelement mounted upon the rst said element for movement therewith andwith respect thereto, an article engaging element adapted to engage thesaid second element for shifting the first said element into an inactiveposition with respect to said shoulder, a portion of the said articleengaging element being adapted to be positioned in the path of movementof the article from the holder and to be shifted thereby, lockingmeansfor locking the first said element in its said inactive position, andkey controlled means for rendering the said locking means inactive, allof the aforesaid parts, with the exception of the said shoulder, beingcarried by and movable with the article holder.

1l. A safety device of the character described, embodying a shiftablymounted article holder, an element mounted upon said holder for movementtherewith and with respect thereto, a stationary shoulder with whichsaid element'is adapted t0 cooperate to lock the holder in apredetermined position when an article is held by the latter, meanstending normally to render said element active with respect to saidshoulder, means controlled by the removal of an article from the holderfor shifting said element with respect to said holder to render theelement inactive with respect to said shoulder, locking means formaintaining said element in said inactive position, and key controlledmechanism for rendering said locking means inactive at will, all of theaforesaid partswith the exception of the said shoulder, being mountedupon the said holder for bodily shifting movement therewith.

, WALTER E. PALlVilill't.

